Code Definition

B1206 — EIC Switch-1 Assembly Circuit Open

System: Body  |  Type: Manufacturer-Specific  |  Make: Generic

About B1206

B1206 is a manufacturer-specific body diagnostic trouble code. It belongs to the B-prefix family of codes, which covers body, interior, airbag, or comfort-electronics faults.

When B1206 is stored, the module has detected an open (broken or disconnected) electrical path in the monitored circuit.

Scanning & clearing: Body (B) codes are often stored in the body control module, airbag module, or climate module. A basic OBD-II tool usually will not read body codes — an enhanced or OEM-level scan tool is typically required.

B1206 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The Electronic Integrated Control (EIC) module monitors the Switch 1 assembly circuit by reading the voltage or resistance presented on the switch input wire. DTC B1206 sets when the module detects an open circuit on that input, meaning current cannot flow through the switch or its signal path back to the module. An open condition is usually caused by a broken conductor in the harness, a disconnected or backed out connector pin, or an internal fault in the switch itself that leaves the contact permanently open. When this fault is present the driver will typically find that one or more buttons ...

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